自20世纪80年代中期以来,中国高速公路进入了建设高潮。截至2005年底, 中国的高速公路通车里程接近4万km。与此同时,公路养护也日益成为各级公路管理者面对的新课题,如何确保优质的公路资产成为推动经济持续发展的源动力已经成为业内广泛关注的话题。20世纪90年代中期,热再生修补工艺开始运用到公路养护施工,渐渐地传统的冷挖补技术被淘汰, 随着科技的进步,新的养护技术也在不断涌现。 Since the mid-1980s, the expressway of China has entered a climax of construction. By the end of 2005, China’s expressway opened to nearly 40,000 km. At the same time, highway maintenance is increasingly becoming a new issue for highway managers at all levels. How to ensure that high-quality highway assets become the driving force for sustained economic development has become a topic of widespread concern in the industry. In the mid 90s of the 20th century, the hot regenerative repair process began to be applied to the road maintenance construction. Gradually the traditional cold digging technology was eliminated. As the technology progressed, new curing technologies were also emerging.